a = 'Python'
b = "Python"
c = '''Python'''
print(a, id(a), type(a))
print(b, id(b))
print(c, id(c))
print(a is b)

a = 'abc'
b = ''.join(['ab', "c"])
c = 'ab' + 'c'
print(a, b, a is b)
print(a is c)
